Connect with others like you for support, practical information, and answers to your questions about living with with abnormal heart rhythms (arrhythmias) or caring for someone with such conditions as: atrial fibrillation (a-fib) and atrial flutter, brachycardia, long QT syndrome, premature ventricular contractions (PVCs), tachycardia, postural orthostatic tachycardia syndrome (POTS), and more ...